15: The Crystal Gets a Past

Tue, 11 Aug 2026 21:52:00 +0100

At the end of the last chapter, our Digital Crystal could tell us something about the world that formed it.

But not enough.

Different forcing processes produced different morphologies.

We could hide the source and recover its family substantially better than chance.

Then we asked a harder question:

What happened first?

We took exactly the same environmental values and rearranged them in time.

Smooth.

Bursting.

Periodic.

Alternating.

Random.

The final morphology could not reliably tell them apart.

19: Can the Crystal Tell Two Pasts Apart?

Wed, 12 Aug 2026 18:28:00 +0100

The crystal could carry a mark from its past.

Chapter 18 established that much.

A local event could change the material.

The change could persist.

It could propagate.

And, while it remained in contact with the moving growth frontier, it could alter later construction.

But that still left a much harder question.

Not:

Did something happen before?

But:

What happened before?

That distinction sounds small.

It is not.